Provided are a bus bar for high current and a battery pack including the bus bar, wherein the bus bar includes a connection block including a first metal, and a main body including a second metal different from the first metal and including the connection block attached therein, the connection block and the main body being press-fitted to be shape-matched with each other along a thickness direction of the bus bar.

Provided are a bus bar for high current and a battery pack including the bus bar, wherein the bus bar includes a connection block including a first metal, and a main body including a second metal different from the first metal and including the connection block attached therein, the connection block and the main body being press-fitted to be shape-matched with each other along a thickness direction of the bus bar.

The bus bar module includes a circuit body composed of a flexible substrate provided with a circuit wiring. The circuit body includes a belt-shaped main body extending along a predetermined direction and a plurality of bus bar portions arranged at a distance in an extending direction of the main body. At least a part of the bus bar portions is arranged to overlap with the main body.

The bus bar module includes a circuit body composed of a flexible substrate provided with a circuit wiring. The circuit body includes a belt-shaped main body extending along a predetermined direction and a plurality of bus bar portions arranged at a distance in an extending direction of the main body. At least a part of the bus bar portions is arranged to overlap with the main body.

A terminal holder is provided for holding a connection terminal (20) for at least three round cells (14, 15, 16). The terminal holder has a centrally encircling rib (11) for placement of the terminal holder (10) on the round cells (14, 15, 16) and for spacing the connection terminal (20) apart from the round cells (14, 15, 16). An elastic lip (12) is arranged at the end for clamping the terminal holder (10) between the round cells (14, 15, 16). A plastic head (13) is arranged opposite the lip (12), for fastening the terminal holder (10) on the connection terminal (20).

A battery module according to one embodiment of the present disclosure can include a battery cell stack including a plurality of stacked battery cells, a first bus bar connected to an electrode lead extending from the battery cells, a connection member connected to the first bus bar for connecting with other adjacent battery modules. The first bus bar can includes a first part connected to the electrode lead and a second part connected to the connection member. A protrusion part can be formed in any one of the first part and the second part, and a through opening into which the protrusion part is inserted is formed in the other one. The protrusion part can be inserted into the through opening to connect the first part and the second part. The protrusion part can include a material that shrinks in volume or changes its shape when the temperature rises.

A method for forming a connection between a first battery cell (1) and a second battery cell (2), wherein, in a first method step, an adhesive (3) comprising at least one first component (31) and at least one second component (32) is applied to the first battery cell (1), wherein a first proportion (41) of the at least one first component (31) and/or a second proportion (42) of the at least one second component (32) is changed during the application of the adhesive (3) over the first battery cell (1), wherein, in a second method step, the first battery cell (1) is connected to the second battery cell (2) in such a way that an inhomogeneous material bond is formed between the first battery cells (1) and the second battery cell (2).

A method for forming a connection between a first battery cell (1) and a second battery cell (2), wherein, in a first method step, an adhesive (3) comprising at least one first component (31) and at least one second component (32) is applied to the first battery cell (1), wherein a first proportion (41) of the at least one first component (31) and/or a second proportion (42) of the at least one second component (32) is changed during the application of the adhesive (3) over the first battery cell (1), wherein, in a second method step, the first battery cell (1) is connected to the second battery cell (2) in such a way that an inhomogeneous material bond is formed between the first battery cells (1) and the second battery cell (2).

Discussed is a battery module, which may include a plurality of battery cells each having electrode leads protruding in a first direction, the plurality of battery cells being stacked in a second direction; and a bus bar including a body portion and a junction portion, the junction portion being a portion of a body portion that is bent and electrically connected to an electrode lead among the electrode leads.

Discussed is a battery module, which may include a plurality of battery cells each having electrode leads protruding in a first direction, the plurality of battery cells being stacked in a second direction; and a bus bar including a body portion and a junction portion, the junction portion being a portion of a body portion that is bent and electrically connected to an electrode lead among the electrode leads.